Preheat the oven to 375
Par Baking the Bottom: Roll out the bottom crust and place into a 9" pie pan. Poke with a fork across the bottom ~10 times. Line with a piece of parchment paper and place pie weights (or dry beans/rice) until the pie is filled. Bake for 20 minutes. After 20 minutes, remove from the oven, remove the weights and bake for 15 minutes (or until golden.) Set aside to cool.
Preheat the oven to 400
Add sliced apples to a large bowl
Add lemon juice, zest, sugar, salt, flour, cinnamon, nutmeg, mace, and vanilla
Stir apples and spices until combined
Add apples into pre-baked pie shell** (see above)
Dot with 5 tablespoons of butter
Lay on the top crust, pinching edges together or using a fork and cut a hole in the center (at this stage you can also do lattice work like is pictured or a crumb topping)
Make your egg wash by adding an egg and tablespoon of water or cream to a bowl
Brush the top crust with egg and sprinkle with sugar
Place in the oven and cook at 400 for 30 min then turn down the oven to 350 and cook for another 45-60 mins until bubbling in center (if the top starts getting too dark tent the pie with foil)